FitzGerald, Jerry <br/><br/>
Business data communications and networking 
Jerry FitzGerald, Alan Dennis; Jerry FitzGerald, Alan Dennis. 
 - 6th ed. 
 - New York  John Wiley and Sons  2000 
 - xx, 491p., ill.; 24cm. 
<br/><br/><label>ISBN: </label>9971-51-292-0. 
<br/><br/><label>Dewey Class. No.: </label>004.6  / F51B